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DATA

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by

dani glez

on 9 April 2015

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Transcript of DATA

Past
Data Storage
DATA
STORAGE
Present
Future
Bibliography

The mangetic tape was invented in 1928 by Fritz Pfeumer.
Later, Gustav Tauschek created the drum memory in 1950.
The manetic-core memory whas the main form of random-access memory between 1955 and 1975.
Primary Storage
RAM Memory (Random Access Memory)
ROM Memory (Read Only Memory)
Stores memory temporally
Processed by the CPU
Hardware which interprets and processes the instructions made by a program
Secondary storage
PCs, laptops, smartphones, digital cameras, mp4s...
capacity
speed
needs entrance/exits channels
additional space to store data
Magnetic
Optical
Magnetic-optical
Flash memory
Pendrives
Memory Cards
Tertiary storage
- Industrial
- Scientific
- Business
Huge capacity
Slower
Optical jukebox
Tape libraries
Cloud storage
videos
pictures
files
contacts
music
sharing
Data storage capacity is based in the following units:
-
Byte:
represents one character (number, letter or symbol)

-
Kilobyte (KB):
equals 1024 bytes

-
Megabyte (MB):
equals 1048576 bytes

-
Gigabyte (GB):
equals 1073741824 bytes

-
Terabyte (TB):
equals 1099511627776 bytes

The hard disk was first commercialized in 1956
In 1962, the compact cassette was invented by Phillips
In 1966, Dr. Robert Dennard created the first DRAM
In 1971, IBM started developing the Floppy disk
In 1980 the well-known was invented by James T. Russel.
The Digital Audio Tape (DAT) was developed by Sony in 1987.
The CompactFlash was made by SanDisk in 1994
In 1995 the DVD was created and commercialized.
In 1997 the Multimedia Card (MMC) was introduced by Siemen's and SanDisk
The USB flash drive and the SD first appeared in 1999.
The Blu-Ray was commercialized in 2003.
Molecular Memory
Uses organic molecules instead of silicon ones
Could have million times of storage density of today's semi-conductor chips
Graphene
Will consume virtually no power (like e-book)
The size is less than 10 nanometeres
Flash memory of 45nanometer circuitry
Bacteria
Encode information into artificial DNA
The information could be stored for 1000 years since bacteria reproduces constantly
One gram of bacteria could store 450 TB
Quantum Mechanics
A single bit of info is encodeto a property of quantum mechanical system
Consumes less power than today's silicon-based chips
LiveScience.com, (2015). New Technique Stores Data in Bacteria. [online] Available at: http://www.livescience.com/1355-technique-stores-data-bacteria.html [Accessed 6 Apr. 2015].

MIT Technology Review, (2001). Molecular Memory | MIT Technology Review. [online] Available at: http://www.technologyreview.com/news/401000/molecular-memory/ [Accessed 2 Apr. 2015].

StorageServers, (2014). The future of Data Storage!. [online] Available at: https://storageservers.wordpress.com/2014/10/27/the-future-of-data-storage/ [Accessed 5 Apr. 2015].

Zetta.net, (2015). The History of Computer Storage from 1938 - 2013 | Zetta.net. [online] Available at: http://www.zetta.net/history-of-computer-storage/ [Accessed 3 Apr. 2015].
each individual molecule contains a bit of data
Full transcript